摘要: Given a string, find all permutations of it without duplicates. Example Given "abb", return ["abb", "bab", "bba"]. Given "aabb", return ["aabb", "abab 阅读全文
posted @ 2016-06-05 09:19 YuriFLAG 阅读(190) 评论(0) 推荐(0)